It was not sarcasm. Sometimes quick glances can involve advanced tasks too.
Or sometimes I'm on the go, with no tablet or computer and I still want to do something advanced, even if the phone screen is small.
Besides there's no reason why I shouldn't be able to hook up my phone to an external display/mouse and get a full desktop experience. (Samsung is ahead of the pack in this, but the apps are still "mobile" versions that are not as fully fledged as their desktop counterparts)